Question

In column I, nature of collision between two bodies is given while in column II some physical quantity that may remains conserved during the collision is given. Match the entries of column I with the entries of column II.

Answer 1

(A)In elastic collisions, KE and momentum both are conserved.
A->1,4
(B)In Inelastic collision, momentum is conserved but kE is not.However, Total energy will be conserved as energy can neither be created nor be destroyed.
B->3,4
(C) In perfectly inelastic collision also KE is not conserved but, by the law of conservation of energy total energy will be conserved.
C->3,4
(D) Collision between two cars moving at a very high speed will be inelastic therefore,
D->3,4